[GitHub] [druid] gianm commented on issue #10042: com.yahoo.sketches.SketchesArgumentException: Incompatible Seed Hashes. 0, -27700

[GitBox <gi...@apache.org>]

gianm commented on issue #10042:
URL: https://github.com/apache/druid/issues/10042#issuecomment-675558548


   The trace above indicates the Broker is trying to deserialize a sketch sent to it by a data server (like a Historical) as the result of a partial aggregation. So, it's not directly from something stored in a segment. It's been run through an aggregator.
   
   @AlexanderSaydakov, @leerho, is it possible that there is some issue when a sketch written with DataSketches 1.1.0 (as the upgraded Historical would do) is read by DataSketches 0.13.3 (as the Broker would do)?
   
   @capistrant, did you get the same stack trace as @DockerLive? If not could you post yours too?
   
   Btw, you should be able to get @leerho the image he asked for by sending the Historical the same query that the Broker did. You'll get a base64 encoded version of the sketch. The best way to get the same query the Broker issued is probably to either:
   
   - use wireshark to capture it and then reissue it
   - enable request logging on one of your Historicals and then copy the query out of the request log


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